CO<sub>2</sub> Absorption Performance of “Dry Matter” Prepared with Amino Acid-Based Ionic Liquids
- 1 Department of Chemical Science and Engineering, Tokyo Institute of Technology, Tokyo, Japan
- 2 Department of Chemical Science and Engineering, Tokyo Institute of Technology, Tokyo, Japan
Abstract
Dry Matter (DM) is a powdery substance which is composed of micro droplets and surrounding hydrophobic silica nanoparticles. Because of the much larger surface area than that of the corresponding bulk liquid, DM, which contains amino-functionalized ionic liquids (ILs), is a promising CO 2 absorption material provided with quick absorption speed. In the present study, we successfully prepared powdery DMs by utilizing aqueous solutions of amino acid-based ILs (tetraethylammonium glycine [N 2222 ][Gly], and tetraethylammonium alanine [N 2222 ][Ala]). Although a DM with lysine-based IL (N 2222 ) [Lys]) was also prepared, only a soufflé-like material was obtained. We measured CO 2 absorption performance for the DMs to find that the mass-base absorption ability (mass-base A.A.) (CO 2 mol/DM kg) and the mol-base one (CO 2 mol/IL mol) of [N 2222 ][Lys] were ca. two times of [N 2222 ][Gly] and [N 2222 ][Ala], while the absorption speed of the former was inferior to the latter two, i.e., ca.15 min vs. 5 min for 90% absorption. In order to improve the mass-base A.A. of [N 2222 ][Gly], we used 10% of aqueous poly(allylamine) (PAlAm) solution instead of water. The resultant mass-base A.A. proved to be significantly larger (1.9) than either of those of the respective single component systems (1.1 and 0.75 for the bulk IL and aq. PAlAm, respectively), and comparable to the A.A. (1.6 - 2.5) of 20% - 30% monoethanolamine solution which is commonly used in industrial application.
- Yang, Z.-Z., Zhao, Y.-N. and He, L.-N. (2011) CO2 Chemistry: Task-Specific Ionic Liquids for CO2 Capture/Activation and Subsequent Conversion. RSC Advances, 1, 545-567. https://doi.org/10.1039/c1ra00307k
- Zhang, J., Zhang, S., Dong, K., Zhang, Y., Shen, Y. and Lv, X. (2006) Supported Absorption of CO2 by Tetrabutylphosphonium Amino Acid Ionic Liquids. Chemistry: A European Journal, 12, 4021-4026. https://doi.org/10.1002/chem.200501015
- Jiang, Y.-Y., Wang, G.-N., Zhou, Z., Wu, Y.-T., Geng, J. and Zhang, Z.-B. (2008) Tetraalkylammonium Amino Acids as Functionalized Ionic Liquids of Low Viscosity. Chemical Communications, No. 4, 505-507. https://doi.org/10.1039/B713648J
- Yokozeki, A., Shiflett, M.B., Junk, C.P., Grieco, L.M. and Foo, T. (2008) Physical and Chemical Absorption of Carbon Dioxide in Room-Temperature Ionic Liquids. Jounal of Physical Chemistry B, 112, 16654-16663. https://doi.org/10.1021/jp805784u
- Yu, H., Wu, Y.T., Jiang, Y.-Y., Zhou, Z.Z. and Zhang, Z.-B. (2009) Low Viscosity Amino Acid Liquids with Asymmetric Tetraalkylammonium Cations for Fast Absorption of CO2. New Journal of Chemistry, 33, 2385-2390. https://doi.org/10.1039/b9nj00330d
- Goodrich, B.F., de la Fuente, J.C., Gurkan, B.E., Lopez, Z.K., Price, E.A., Huang, Y. and Brennecke, J.F. (2011) Effect of Water and Temperature on Absorption of CO2 by Amine-Functionalized Anion-Tethered Ionic Liquids. Journal of Physical Chemistry B, 115, 9140-9150. https://doi.org/10.1021/jp2015534
- Zhang, X., Zhang, X, Dong, H., Zhao, Z., Zhang, S. and Huang, Y. (2012) Carbon Capture with Ionic Liquids: Overview and Progress. Energy and Environmental Science, 5, 6668-6681. https://doi.org/10.1039/c2ee21152a
- Ramdin, M., de Loos, T.W. and Vlugt, T.J.H. (2012) State-of-the-Art of CO2 Capture with Ionic Liquids. Industrial and Engineering Chemistry Research, 51, 8149-8177. https://doi.org/10.1021/ie3003705
- Niedermaier, I., Bahlmann, M., Papp, C., Kolbeck, C., Wei, W., Calderón, S.K., Grabau, M., Schulz, P.S., Wasserscheid, P., Steinrück, H-P. and Maier, F. (2014) Carbon Dioxide Capture by an Amine Functionalized Ionic Liquid: Fundamental Differences of Surface and Bulk Behavior. Journal of American Chemical Society, 136, 436-441. https://doi.org/10.1021/ja410745a
- Anderson, K., Atkins, M.P., Estager, J., Kuah, Y., Ng, S., Oliferenko, A.A., Plechkova, N.V., Puga, A.V., Seddon, K.R. and Wassell, D.F. (2015) Carbon Dioxide Uptake from Natural Gas by Binary Ionic Liquid-Water Mixtures. Green Chemistry, 17, 4340-4354. https://doi.org/10.1039/C5GC00720H